textile designing, world textile learning ,ladies design,fashion tips,cloth for woman,make a cloths,make a lady fashion,new ladies cloth fashion,how to stitch cloth at home,baby fashion,wool design,clothes for girls,cloth for man, textile design,fashion design,Pakistan textile industry, Indian textile Industry, On line jobs,
Sunday, December 11, 2011
Friday, October 7, 2011
Monday, October 3, 2011
Wedding Rooms decorating design
A Wedding is one of life a great moments ,A time of serious commitment as well and celebration and enjoy .This time working at a beautiful planning.Because the days of your life entrust it to your expert planners and make it truly magic .Wedding Rooms is a good solution in the fist day of wedding ,,,,,And first of all start from the door decorating on the one side in room ,Make the beautiful banner and write the nice welcome notes on the one side of banner and do not disturb the other side banner .You can use the color full lights to say welcome lover and wedding couple .
In the wedding beautiful flowers and some use the perfume in wedding rooms. choose the best color and need for the nice notes couple .To decorate the floor and add the more romantic wedding notes .
This will add the happiness charm and at event
In the wedding beautiful flowers and some use the perfume in wedding rooms. choose the best color and need for the nice notes couple .To decorate the floor and add the more romantic wedding notes .
This will add the happiness charm and at event
Monday, September 26, 2011
Saturday, September 24, 2011
jewellery design
The jewellery design in the famous is world .Jewellery design good life style the. In the file style jewellery design is very nice wishes.Mostly jewellery design use the woman s and girls .This design mostly use the Pakistan and Indian girls and woman s' .In the jewellery necklace and ring is very important in woman s' life .
I like this jewellery and style .In jewellery many designing and defrent style and is make beautiful design .
My life is very simple with out jewellery .Jewellery is my life and good option in my life . use the your good life style and choose the jewellery and enjoy it life . and more design of jewellery found it my website .thank you for this visiting my site and view jewellery design .
I like this jewellery and style .In jewellery many designing and defrent style and is make beautiful design .
My life is very simple with out jewellery .Jewellery is my life and good option in my life . use the your good life style and choose the jewellery and enjoy it life . and more design of jewellery found it my website .thank you for this visiting my site and view jewellery design .
Friday, September 16, 2011
Fashion designing for Indian
The wedding is a beautiful events of life Wedding Dresses and fashion we need
Wedding in your life very important.Life is rubbish with out wedding .
Wedding in your life very important.Life is rubbish with out wedding .
Wednesday, September 14, 2011
REGAIN AND RELATIVE HUMIDITY
At any particular temperature air is able to hold a certain maximum amount of water vapour in clear solution with out the air becoming misty or foggy . Excess of water vapour over this maximum or saturation amount instantly causes a fine dew to form. The maximum amount of water vapour that can he held without dew formation is usually stated in terms of grains of water per cubic foot of air this being the absolute bumidity . For example air at 70 deg . F .can hold 8 grains of water per cubic foot at saturation point . At higher temperatures than 70 deg. F . air can hold larger weights of water for example at 83 deg .F. 12 grains of water per cubic foot are required for saturation.
SATURATION
Saturated conditions are very rarely approached in practical textile operation except perhaps in dye houses. Normally the water content of air is well below saturation point . The ratio of the actual amount of vapour present to the saturation value expressed as a percentage gives the relative humidity usually shortened to .R..H. For example if the air of a room at 70deg. F . Holds only 4 grains of water per cubic foot (the absolute humidity at this temperature being 8 grains ) its relative humidity 4*100/8 or 50% R.H.
In practical textile work the actual weight of water present per cubic foot os of much less importance than the relative humidity It would clearly be possible to have two rooms one at 70 deg. F. and one at 83 deg. F.both containing 8 grains of water per cubic foot. The relative humidities however would be 100% and 66% respectively each cubic foot of air at 83 deg. G . would be able to take up a further 4 grains of water during such an operation as drying wet wool whereas the air at 70 deg. could take up no water and could hage no drying effect.
A point of great importance in textile testing is that the percentage of moisture in a textile fibre which has been conditioned in an atmosphere and is in equilibrium with it deepens on the relative humidity and not on the absolute humidity . Thus wool exposed to 50% R.H in a room at 70% deg. F. .would contain just as much moisture as if exposed to 50% R. H in a room at 83 deg .F though the air in th elater room would contain twice as great a weight of actual water per cubic foot as the air in the room at 70 deg. F .
The relative humidity of air which is not subject to control varies under uncontrolled conditions very greatly as the following figures relating to common English conditions will show . On a cold frosty day in winter with temperature at treeing point the absolute humidity of the air is only 1/2 grain per cubic foot and 95% R.H. is easily attained if this air be drawn into a spinning shed would become about 6% On a hot summer day after heavy thunder rain a mill temperature of 83 % deg. F. may be reached with a very moist atmosphere containing 10 grains of water per cubic foot and a relative humidity of 80% .
The natural regain of wool in an atmosphere of 80% R.H. is almost five times as great as in an atmosphere of 6 % R. H. wool in the same spinning shed could vary in its moisture content by 500%.
SATURATION
Saturated conditions are very rarely approached in practical textile operation except perhaps in dye houses. Normally the water content of air is well below saturation point . The ratio of the actual amount of vapour present to the saturation value expressed as a percentage gives the relative humidity usually shortened to .R..H. For example if the air of a room at 70deg. F . Holds only 4 grains of water per cubic foot (the absolute humidity at this temperature being 8 grains ) its relative humidity 4*100/8 or 50% R.H.
In practical textile work the actual weight of water present per cubic foot os of much less importance than the relative humidity It would clearly be possible to have two rooms one at 70 deg. F. and one at 83 deg. F.both containing 8 grains of water per cubic foot. The relative humidities however would be 100% and 66% respectively each cubic foot of air at 83 deg. G . would be able to take up a further 4 grains of water during such an operation as drying wet wool whereas the air at 70 deg. could take up no water and could hage no drying effect.
A point of great importance in textile testing is that the percentage of moisture in a textile fibre which has been conditioned in an atmosphere and is in equilibrium with it deepens on the relative humidity and not on the absolute humidity . Thus wool exposed to 50% R.H in a room at 70% deg. F. .would contain just as much moisture as if exposed to 50% R. H in a room at 83 deg .F though the air in th elater room would contain twice as great a weight of actual water per cubic foot as the air in the room at 70 deg. F .
The relative humidity of air which is not subject to control varies under uncontrolled conditions very greatly as the following figures relating to common English conditions will show . On a cold frosty day in winter with temperature at treeing point the absolute humidity of the air is only 1/2 grain per cubic foot and 95% R.H. is easily attained if this air be drawn into a spinning shed would become about 6% On a hot summer day after heavy thunder rain a mill temperature of 83 % deg. F. may be reached with a very moist atmosphere containing 10 grains of water per cubic foot and a relative humidity of 80% .
The natural regain of wool in an atmosphere of 80% R.H. is almost five times as great as in an atmosphere of 6 % R. H. wool in the same spinning shed could vary in its moisture content by 500%.
Friday, August 5, 2011
Mehndi designing for bridal
Mehndi designs is very nice the mehndi for hands very impotent.Be fore you on hands mehndi...hands complete clean and ten to eleven hours mix-up in water .mehndi design mostly woman used it .mehndi design some countries make Pakistan, India, Bangladesh, sudi Arab, malaysia, Italy, etc. mehndi design mostly made the wedding and festival religion .
what you want your life style and more information your life,
But your life is a very simple when the with out of fashion ,fashion is a human life style tell him and your personalty in crease it ,more mehndi design is a available in site found it your choice thanks .
Monday, August 1, 2011
Makeup for the girls
Makeup
Make up is supprisingly often a over looke ditem when planning your deam shadi.
Brides akways focus on planing their outfits. jewelliry. thir and mehndi but do not realise that,to look amazingly stunning on their
wedding day they really need to have good make up applied by a professinol.
Bridal makeup by its very naturelly is a unique requirement and your makeup regime for the big day needs careful thought and consideration.
Our bridal beauty consultant, lubna Rafiq, of Art of beauty shares some of bridal beauty insights with you ..
My personal approach to makeup for brides is one of correctove, subtle makeup that enhances the brides best features and makes her look natually radiant
and beautifull on her big day.The first thing people notice when they at a bridel is how stunning and radiant she looks,,, not her make up it self .
In fact makeup that is too obvious con look over done and artificial so understated and sopgisticated elegance is the name of the game!
Thursday, July 28, 2011
THE TEXTILE APPLICATION
At the present time all the well known resins of the colourless type are employed in textile work for one purpose or another. The following brief survey is merely illustrative of the main types which the analyst may expect to find.
Many of the thermoplastic types are made into fibres.e g the poly amides polyvinyl chloride polyisobutylene chloride alkyd and styrene. There are three to four protein formaldehyde fibres .Some fibres ,especially cotton and rayon are reacted with synthetic resin components such as aldehyde or ketone to produce new cross bonded products exhibiting durable stiff finishes which must be regarded as belonging to the synthetic resin group The treatment of cellulose with acetone and of wool with formaldehyde must be included in this group.
Starch has been condensed with formaldehyde in presence of an acid catalyst to produce resistant finishes. Cellulose ethers (alkyl celluloses ) including methyl ethyl and benzyl cellulose have useful applications . methyl cellulose has the peculiar and valuable property of being insoluble in hot water but soluble cold . The hydroxylate celluloses / such as glycol cellulose form mucilages with 2N caustic soda from which they can be applied to textiles . treatment with dilute acid precipitates the resin on to the fibre in a form fast to mild washing . Carboxymethyl cellulose forms a water soluble sodium salt which on drying on the fibre gives a flexible film type finish.
Cellulose will also condense with dimethylol form amide, H.co.N(C H 2 OH or a mixture of glottal urea formaldehyde to give cross bonded effects.
Animalised rayon is produced by incorporating phenol formaldehyde , Gaudiness formaldehyde melamine formaldehyde or cyan amide formaldehyde resins in the spinning bath for viscose to give such products as Hollandaise the cellulose being cross bonded . Non cross bonded types contain particles of E.G basis polyethylene mine resin as example being Sinistral.
Emulsion of many thermoplastic resins are applied followed by drying and possibly by heat treatment to give special finishes . Polyvinyl acetate polyvinyl alcohol and methyl meth acrylate (Possibly modified by alkyd resins 0 are used for abrasion resistant finishes . non snag finishes non slip finishes therm adhesive finishes permanent embossed effects and pigment fixation in printing. They may be produced using either an anion active emulsifier for padding purposes or with a cation active emulsifier in which axes the emulsified resin is substantive to the fibre.
Amongst thermosetting resins urea formaldehyde types are used for crease resistant finishes being applied in a partly preformed state and subsequently cured by baking . A partly preformed resin alkyd modified may be applied from an ammonia solution dried and baked to give permanent stiff finishes . Urea formaldehyde resins partly condensed to a water soluble product may be produced as water soluble powders the solutions of which give a finely dispersed and substantive precipitate of methylene urea polymer on addition of acid these products are used for de lustred finishes which are permanent after baking . Other de lustred effects are obtained by adding titanium oxide to an ordinary urea formaldehyde resin preparation. Thoreau may be used in place of urea.
The melamine resins are rapidly increasing in importance. Melamine formaldehyde resin anticancer finishes are more resistant to chlorine bleaching in laundering than the urea formaldehyde types on cotton .they have been used to produce shrink resistant finishes on wool. Discriminable formaldehyde resins are used to confer improved wash fastness on dyestuffs and are also claimed to impart fireproof properties .
Cellulose will also condense with dimethylol form amide, H.co.N(C H 2 OH or a mixture of glottal urea formaldehyde to give cross bonded effects.
Animalised rayon is produced by incorporating phenol formaldehyde , Gaudiness formaldehyde melamine formaldehyde or cyan amide formaldehyde resins in the spinning bath for viscose to give such products as Hollandaise the cellulose being cross bonded . Non cross bonded types contain particles of E.G basis polyethylene mine resin as example being Sinistral.
Emulsion of many thermoplastic resins are applied followed by drying and possibly by heat treatment to give special finishes . Polyvinyl acetate polyvinyl alcohol and methyl meth acrylate (Possibly modified by alkyd resins 0 are used for abrasion resistant finishes . non snag finishes non slip finishes therm adhesive finishes permanent embossed effects and pigment fixation in printing. They may be produced using either an anion active emulsifier for padding purposes or with a cation active emulsifier in which axes the emulsified resin is substantive to the fibre.
Amongst thermosetting resins urea formaldehyde types are used for crease resistant finishes being applied in a partly preformed state and subsequently cured by baking . A partly preformed resin alkyd modified may be applied from an ammonia solution dried and baked to give permanent stiff finishes . Urea formaldehyde resins partly condensed to a water soluble product may be produced as water soluble powders the solutions of which give a finely dispersed and substantive precipitate of methylene urea polymer on addition of acid these products are used for de lustred finishes which are permanent after baking . Other de lustred effects are obtained by adding titanium oxide to an ordinary urea formaldehyde resin preparation. Thoreau may be used in place of urea.
The melamine resins are rapidly increasing in importance. Melamine formaldehyde resin anticancer finishes are more resistant to chlorine bleaching in laundering than the urea formaldehyde types on cotton .they have been used to produce shrink resistant finishes on wool. Discriminable formaldehyde resins are used to confer improved wash fastness on dyestuffs and are also claimed to impart fireproof properties .
Wednesday, July 27, 2011
Monday, July 25, 2011
HOW TO CREATE A WEBSITE FOR FREE
fast of all chose a domin name and make a website or blog prches domin or free get in.
and now needed you template get in you templatea other websites.and register your website
and or go to the blogger.com and create a blog butten on clicks and new window open page fourm
and this froum fill in as follow qusion and copmlete him froum.below list in fill.
www.blogger.com
The website is a good way make many online promotion your website and apply for ad and in website good save data ,In this website many option for your help for in main menu .
Main menu in sub menu .as a
Posting:
Comments -Settinge-Design-Monetize-Stats- etc
Posting sub menu : New Post- Edit Post-Edit Page-
Comments:
Publishing and spam
Basic -Publishing -formatting -comments-archiving-site feed-Email and mobile-open id-and permission.
Design or layout :
Page elements -Edit HTML for example happier text mark-up langue -Template design.
Monetize :
Set Up AdSense-AdSense For Feeds-Amazon Associates.
Stats:
Overview-Posts-traffic sources-Audience.
Who to make money with your blog and website with ad sense .
www.blogger.com
- Blog title etc your choice .for example blog name .
- Blog address or (URL) for example www.textile4all.blogspot.com
- word verification or (capcha ) bJ2JZss etc.
- Choose a starter template for example your website design.
- And your website create .Now starting your posting in website .
- Submit your website other website
- Commenting in other website this site .
- And forum posting this site account and post .
- SEO your website .
The website is a good way make many online promotion your website and apply for ad and in website good save data ,In this website many option for your help for in main menu .
Main menu in sub menu .as a
Posting:
Comments -Settinge-Design-Monetize-Stats- etc
Posting sub menu : New Post- Edit Post-Edit Page-
Comments:
Publishing and spam
Basic -Publishing -formatting -comments-archiving-site feed-Email and mobile-open id-and permission.
Design or layout :
Page elements -Edit HTML for example happier text mark-up langue -Template design.
Monetize :
Set Up AdSense-AdSense For Feeds-Amazon Associates.
Stats:
Overview-Posts-traffic sources-Audience.
Who to make money with your blog and website with ad sense .
Sunday, July 24, 2011
CHROMATOGRAPHIC METHODS
In principle these methods are similar to capillarity methods the main differences being that in capillarity the liquid and its solute rise by surface tension through a micro porous system whereas in chromatographic analysis they fall by gravity through such a system ,chromatographic adsorbent may be selected to be strongly polar and chemically reactive towards one component of a mixture to be tested.
The manipulative technique consists in packing a tube of perhaps an inch diameter with an adsorbent powder such as finely divided alumina and pouring the liquid on the top of the column of adsorbent . the larger aggregates tend to be retarded in their rate of flow as compared to the smaller molecules and the aggregates or molecules of polarity opposite to that of the adsorbent tend to be further retarded or adsorbed and fixed .
The components in the solution therefore become separated in space and the spacial sepatation may be "developed" by washing with pure solvent or elutriant.The chief advantage of the method is that by proper development components may be isolated as separate fractions . In certain cases of biological importance component which are extremely difficult to estimate quantitatively by chemical methods are very easily separated in almost a pure form by chromatography.
The properties of the adsorbent depend largely on its method of preparation . Alumina silica gel politer starch magnesium carbonate (Ponds and indeed any finely divide material may be used .
The technique is still largely empirical but general principles are emerging and mathematical investigations have commenced to be made .In general good separation is obtained of two components if one has a much bigger molecule or is more aggregated than the other , or if one component carries an electrical charge of opposite sign to that of the adsorbent whilst the other is electrically inert or of the same charge as the adsorbent.
The manipulative technique consists in packing a tube of perhaps an inch diameter with an adsorbent powder such as finely divided alumina and pouring the liquid on the top of the column of adsorbent . the larger aggregates tend to be retarded in their rate of flow as compared to the smaller molecules and the aggregates or molecules of polarity opposite to that of the adsorbent tend to be further retarded or adsorbed and fixed .
The components in the solution therefore become separated in space and the spacial sepatation may be "developed" by washing with pure solvent or elutriant.The chief advantage of the method is that by proper development components may be isolated as separate fractions . In certain cases of biological importance component which are extremely difficult to estimate quantitatively by chemical methods are very easily separated in almost a pure form by chromatography.
The properties of the adsorbent depend largely on its method of preparation . Alumina silica gel politer starch magnesium carbonate (Ponds and indeed any finely divide material may be used .
The technique is still largely empirical but general principles are emerging and mathematical investigations have commenced to be made .In general good separation is obtained of two components if one has a much bigger molecule or is more aggregated than the other , or if one component carries an electrical charge of opposite sign to that of the adsorbent whilst the other is electrically inert or of the same charge as the adsorbent.
Thursday, July 21, 2011
DETECTION OF METALS
The extraordinary progress made in histochemical analysis during recent years deserves the attention of all textile chemists,especially since the development of spot tests has placed a large number of very successful reactions within reach of almost anyone . They may be divided into three main groups :
( 1 ) Crystal formation tests.
These involve the precipitation usually on a microscope slide of a chemical compound which has a distinctive cry stalling form or colour the crystals are as a rule of micro dimensions and in some instances require high magnification for observation . Although very sensitive and specific they require some skill and experience and knowledge of crystallography.
( 2 ) Stop tests
which involve the production on a glass plate or filter paper of a coloured stain or precipitate which is characteristic of a certain radices or element . They are very simple to carry out and are superseding many old established tests.
( 3 ) Film tests
These depend on the taking of a print on gelatine film previously impregnated with a suitable reagent. The film is pressed into contact with the material such as cloth which it is desired to test.
SODIUM SULPHATE
This is marketed as salt cake glanders salt and sodium sulphate crystals .It should be tested colorimetric ally for iron and volumetrically for sulphate content by precipitation as Benzedrine sulphate or alternatively as barium sulphate by the gravimetric method.
( 1 ) Crystal formation tests.
These involve the precipitation usually on a microscope slide of a chemical compound which has a distinctive cry stalling form or colour the crystals are as a rule of micro dimensions and in some instances require high magnification for observation . Although very sensitive and specific they require some skill and experience and knowledge of crystallography.
( 2 ) Stop tests
which involve the production on a glass plate or filter paper of a coloured stain or precipitate which is characteristic of a certain radices or element . They are very simple to carry out and are superseding many old established tests.
( 3 ) Film tests
These depend on the taking of a print on gelatine film previously impregnated with a suitable reagent. The film is pressed into contact with the material such as cloth which it is desired to test.
SODIUM SULPHATE
This is marketed as salt cake glanders salt and sodium sulphate crystals .It should be tested colorimetric ally for iron and volumetrically for sulphate content by precipitation as Benzedrine sulphate or alternatively as barium sulphate by the gravimetric method.
Monday, July 18, 2011
ZINC CHLORIDE LODINE TEST
Two test solutions are required A and B. solution A is 62% zinc chloride in water , solution B is I% iodine in a 20% solution of potassium iodide. the test reagent is a mixture of I cc .B and 100 c.c. A it must be freshly prepared .The sample of fibre is wetted out well squeezed and immersed for three minutes in th test solution being then removed and rinsed in water. Swollen cellulose such as cotton is colourless after washing but swollen cellulose such as mercerised cotton or viscose is dark blue being slowly decolonised by washing .The colour is not permanent but if the sample after washing is dropped into a boiling I% solution of Indigo sol Blue O4B the indigo sol is caused to dye the cotton in proportion to the amount of iodine present . Washing in water followed by a short period in boiling soap solution provides a permanent record .Dyed samples may first be stripped without affecting the test.
NORMAL STORAGE TEST:
This consists in storing wool tops oiled with the oil under test wrapped in paper to keep out dust for periods up t three or four years . samples should be drawn extracted and th extract examined after one two four eight sixteen thirty two and sixty four weeks after the date of oiling . It is always desirable to carry out this test as a final method when examining an entirely new oil .Table LIII shows the figures to be expected from a good quality oil.
NORMAL STORAGE TEST:
This consists in storing wool tops oiled with the oil under test wrapped in paper to keep out dust for periods up t three or four years . samples should be drawn extracted and th extract examined after one two four eight sixteen thirty two and sixty four weeks after the date of oiling . It is always desirable to carry out this test as a final method when examining an entirely new oil .Table LIII shows the figures to be expected from a good quality oil.
Saturday, July 16, 2011
OXY ACIDS (PETROL INSOLUBLE ACIDS)
Prepare the total fatty acids extract with petroleum ether (B.P.40 to 60 deg.C.) under reflux dissolve the residue in alcohol, evaporate to dryness and weigh . The term oxy acids is a very vague one and merely indicates the substances which are insoluble in petrol ether but solely in alcohol. Amongst these bodies is dihydroxystearic acid and consequently a high percentage of oxy acids does not necessarily indicate that it has oxidised at the double bond by addition of the OH group probably due to decomposition of peroxides .
However when a typical case of undesirable oxidation of an oil on wool is examined it is invariably found that the paint like sub stances present are insoluble in petroleum ether but soluble in alcohol.
WETTING OUT AND LATHERING POWER
When the surface tension of a pure liquid is lowered by solution in it of any substance this substance concentrates in the surface to form a specially concentrated layer and the nature of this layer determines the lathering power. Wetting out is mainly a function of surface tension the deciding factor in the wetting of a solid by a liquid being the interracial tension liquid solid .
The angle at which a liquid joins a solid which it does not wet is termed the contact angle , this becomes less as the interracial tension in lowered until at complete wetting it is zero .The contact angle decreases as the relative humid ity increases a point of practical importance A low interracial tension confers on the wetting liquid the power of penetrating into capillary channels and interstices of textile materials. The surface tension of wetting and detergent solutions is decreased with increase of temperature . The soaps from liquid fatty acids such as oleic are better foaming and emulsify more readily than soaps from solid fatty acid such as Stearns acid at low temperatures , but the reverse is the case at boiling point Foaming is a general indication of wetting power though it is more reliably a measure of emulsion formation.
However when a typical case of undesirable oxidation of an oil on wool is examined it is invariably found that the paint like sub stances present are insoluble in petroleum ether but soluble in alcohol.
WETTING OUT AND LATHERING POWER
When the surface tension of a pure liquid is lowered by solution in it of any substance this substance concentrates in the surface to form a specially concentrated layer and the nature of this layer determines the lathering power. Wetting out is mainly a function of surface tension the deciding factor in the wetting of a solid by a liquid being the interracial tension liquid solid .
The angle at which a liquid joins a solid which it does not wet is termed the contact angle , this becomes less as the interracial tension in lowered until at complete wetting it is zero .The contact angle decreases as the relative humid ity increases a point of practical importance A low interracial tension confers on the wetting liquid the power of penetrating into capillary channels and interstices of textile materials. The surface tension of wetting and detergent solutions is decreased with increase of temperature . The soaps from liquid fatty acids such as oleic are better foaming and emulsify more readily than soaps from solid fatty acid such as Stearns acid at low temperatures , but the reverse is the case at boiling point Foaming is a general indication of wetting power though it is more reliably a measure of emulsion formation.
Friday, July 15, 2011
Friday, July 8, 2011
TEXTILE CATALYSTS
A perfectly pure olefin acid ester oxidises comparatively slowly . The rate of oxidation is influenced very greatly by the presence of catalysts and can be increased a millionfold in this way Almost all oils prepared from natural sources contain oxidising catalysts . The most powerful catalysts are compounds of those metals copying the lowest points on the atomic volume curve . Even I mole . ferric oleate per 10,000,000 moles . Ethyl oleate has a detectable effect on the mickey test .
When metallic catalysts ans fatty acids are both present their combined effect is very great. Exposure to light has also an important catalytic effect not altogether due to the formation of peroxides.
All catalysts seem to act primarily by greatly increasing the rate of peroxide formation. the author considers that metals act as activating agents and light and heat act be supplying activation energy fatty acids are known to be more easily activated than esters . In the case of metals if C is the metal compound and a the activation energy then C+a Ca : Ca + M to Ma + C: C+ a to Ca ,etc
In the case of light either the catalysts or the fatty acid ester may become activated directly I,e M+bv to Ma : C + bv to Ca.
When metallic catalysts ans fatty acids are both present their combined effect is very great. Exposure to light has also an important catalytic effect not altogether due to the formation of peroxides.
All catalysts seem to act primarily by greatly increasing the rate of peroxide formation. the author considers that metals act as activating agents and light and heat act be supplying activation energy fatty acids are known to be more easily activated than esters . In the case of metals if C is the metal compound and a the activation energy then C+a Ca : Ca + M to Ma + C: C+ a to Ca ,etc
In the case of light either the catalysts or the fatty acid ester may become activated directly I,e M+bv to Ma : C + bv to Ca.
TEXTILE OILS
The first line of this post is concerned with the reactions which take place when an ester of an unsaturated fatty acid of the kind occurring in many suitable textile oils is oxidised by air or oxygen . For the sake of simplicity such an ester may be represented as R1 C H:C H-R 2 COOR 3 an example being ethyl oleate.
When a saturated carbon chain is oxidation takes place mainly at elevated temperatures such as occur in the Mackey test or in vapour phase oxidation or due to bacterial action.
The most common type of oxidation is attack on the double bond which takes place rapidly even at normal room temperatures . The first stage is peroxide formation by addition of a molecule of oxygen at the double bond the subsequent stages may be shown diagram manically as follows
splitting products
MO
condensation products
When monophthongs fatty acids E g Leica acid are involved the condensation products will be limited to dimers which will be soluble in the oil. This is what happens in a non drying oil.
When diethenoid fatty acids E g Linotype acid are involved the possibility of trio or higher polymers arises as Linotype may form a double peroxide and each such compound con condense with two othe peroxides . In the case of Linotype acid such condensation products are likely to be relatively simple and will at first from dispersion or microscopically small aggregates in the mass of unoxidised oil.
As oxidation becomes more extensive these aggregates may link up to form al loose structure which will be viscous and sticky .If the oxidation has taken place on a textile fibre the oil. will not readily split up into small droplets during scouring and will be difficult to scour out .This is a description of the behaviour of a semi drying oil E g cotton seed oil.
When a saturated carbon chain is oxidation takes place mainly at elevated temperatures such as occur in the Mackey test or in vapour phase oxidation or due to bacterial action.
The most common type of oxidation is attack on the double bond which takes place rapidly even at normal room temperatures . The first stage is peroxide formation by addition of a molecule of oxygen at the double bond the subsequent stages may be shown diagram manically as follows
splitting products
MO
condensation products
When monophthongs fatty acids E g Leica acid are involved the condensation products will be limited to dimers which will be soluble in the oil. This is what happens in a non drying oil.
When diethenoid fatty acids E g Linotype acid are involved the possibility of trio or higher polymers arises as Linotype may form a double peroxide and each such compound con condense with two othe peroxides . In the case of Linotype acid such condensation products are likely to be relatively simple and will at first from dispersion or microscopically small aggregates in the mass of unoxidised oil.
As oxidation becomes more extensive these aggregates may link up to form al loose structure which will be viscous and sticky .If the oxidation has taken place on a textile fibre the oil. will not readily split up into small droplets during scouring and will be difficult to scour out .This is a description of the behaviour of a semi drying oil E g cotton seed oil.
Tuesday, July 5, 2011
SURFACE STRUCTURE OF COLORED MATERIAL
One of the great difficulties in the measurement of color is that color depends to a large extent on the surface structure (glossy matt corrugated etc ) and hence upon the lustre of the material which is color .A further difficulty is that the eye is not as suitable an instrument as xould be desired for the purpose of measuring color because it sees a perfectly graded range of color e. g, from white to dark green as a series of small steps each differing by a slight jump from the adjacent steps . There is the further difficulty possibly the most important one of all that scientific instruments do not as a rule react to the spectrum of white light in the same manner as the eye does.
This may be illustrated simply by means of the example of an ordinary photographic plate . The eye sees a bright red and a bright green as two equally luminous surfaces but the photographic plate sees the bright red as black whilst it sees the bright green as a much more luminous color.
This may be illustrated simply by means of the example of an ordinary photographic plate . The eye sees a bright red and a bright green as two equally luminous surfaces but the photographic plate sees the bright red as black whilst it sees the bright green as a much more luminous color.
Sunday, July 3, 2011
ANALYTIC METHODS
In view of the wide range of products available and the possibility of complex mixtures being marketed it is not possible to devise a general scheme of analysis which will cover all cases. Extraction with a non polar solvent such as petroleum wther will remove solvents unsatisfied fats and oil subsequent extraction with absolute alcohol will remove soaps and oxidized fatty bodies.
The residue will consist of suspected and opinionated bodies together with inorganic alcohol insoluble substances. A simple scheme of this kind must however be regarded as qualitative only. A considerable knowledge of the chemistry of oils and soap is necessary to deal with the more complex cases adn the methods given are merely for routine control of deliveries . Efforts should be directed towards performance tests on a value basis rather than towards chemical analysis in detail.
SOAPS
Soaps employed in the textile industry are mainly the sodium or potassium salts of oleic palmistry and stearic acid in admixture in the proportions in which they occur naturally in such oils as olive oil and are chis oil. For certain purposes coconut oil soaps are used which are mainly sodium laureate. Soaps have good wetting and detergent power but are unstable chemically being decomposed by acids and precipitated from solution by calcium and magnesium salts in hard water.
The residue will consist of suspected and opinionated bodies together with inorganic alcohol insoluble substances. A simple scheme of this kind must however be regarded as qualitative only. A considerable knowledge of the chemistry of oils and soap is necessary to deal with the more complex cases adn the methods given are merely for routine control of deliveries . Efforts should be directed towards performance tests on a value basis rather than towards chemical analysis in detail.
SOAPS
Soaps employed in the textile industry are mainly the sodium or potassium salts of oleic palmistry and stearic acid in admixture in the proportions in which they occur naturally in such oils as olive oil and are chis oil. For certain purposes coconut oil soaps are used which are mainly sodium laureate. Soaps have good wetting and detergent power but are unstable chemically being decomposed by acids and precipitated from solution by calcium and magnesium salts in hard water.
Friday, July 1, 2011
BEST FIBERS
The fibers known in the textile trade as best fibers are the stiffening elements associated with the phloem tissues in plant stems leaf stalks and leaves . They can be divided botanically into two groups (1) cells occurring in the bast of the stalks or stems (2) the fibers occurring as serendipitous tissue in leaves . They are generally characterized by having a ratio of length to diameter of from 500 to 2000 They occur in bundles disposed longitudinally wherever stiffening is required .
The cells in the bundles are embedded are embedded in a median layer which cements the fibers together . This may be almost absent as in the case of New Zealand flax or very thick as in the case of nuns hemp. It consists of lining or nitrocellulose or in th cease of flax of calcium spectate.
The bundles themselves are embedded in a packing structure consisting of cuboid parenchymatous cells of no textile value .
External to the phloem is a layer of cortex which may be regarded as a skin or bark.The commercial methods used in the production of bast fibers consist in general of ,mechanical removal of the cortex , mechanical removal the whole or most of the median layer. In commercial production the cortex parenchyma and median structures are rarely removed quite completely and examination for identification purposes should not neglect a search for residual non bast cells which are often characteristic.
Chemically the bast fibers are all cellulose but differ from cotton in that they also contain varying proportions of lining or nitrocellulose. This proportion may very from almost zero in the case of ramie to a proportion of 40% lining in the case of jute hemp may be regarded as typical of an intermediate type containing from 5 to 10 % nitrocellulose.
Microscopical methods of identification consist in measurement of the mean cell diameter observation of the shape of the cell ends , consideration of the width of the lumpen relative to that of the cell walls examination of the cross section and determination of the characteristics of special constituents such as the stigmata in manila .Chemically the most useful reaction for identification is this specific staining of nitrocellulose by means of phloroglucinol.
Some of the fiber names are used very loosely fo example matthews ( textile fibers ) lists more than thirty plants giving fibers known commercially as hemp. The most important textile bast fibers are ramie flax hemp and jute these together with sisal manila New Zealand flax and raffia are considered in detail below . For other bast fibers Matthews should be consulted.
The cells in the bundles are embedded are embedded in a median layer which cements the fibers together . This may be almost absent as in the case of New Zealand flax or very thick as in the case of nuns hemp. It consists of lining or nitrocellulose or in th cease of flax of calcium spectate.
The bundles themselves are embedded in a packing structure consisting of cuboid parenchymatous cells of no textile value .
External to the phloem is a layer of cortex which may be regarded as a skin or bark.The commercial methods used in the production of bast fibers consist in general of ,mechanical removal of the cortex , mechanical removal the whole or most of the median layer. In commercial production the cortex parenchyma and median structures are rarely removed quite completely and examination for identification purposes should not neglect a search for residual non bast cells which are often characteristic.
Chemically the bast fibers are all cellulose but differ from cotton in that they also contain varying proportions of lining or nitrocellulose. This proportion may very from almost zero in the case of ramie to a proportion of 40% lining in the case of jute hemp may be regarded as typical of an intermediate type containing from 5 to 10 % nitrocellulose.
Microscopical methods of identification consist in measurement of the mean cell diameter observation of the shape of the cell ends , consideration of the width of the lumpen relative to that of the cell walls examination of the cross section and determination of the characteristics of special constituents such as the stigmata in manila .Chemically the most useful reaction for identification is this specific staining of nitrocellulose by means of phloroglucinol.
Some of the fiber names are used very loosely fo example matthews ( textile fibers ) lists more than thirty plants giving fibers known commercially as hemp. The most important textile bast fibers are ramie flax hemp and jute these together with sisal manila New Zealand flax and raffia are considered in detail below . For other bast fibers Matthews should be consulted.
TEXTILE GRAPHICS DESIGNING
The best design in the world are textile designing mostly summer or winter weather use it peoples and some design summer and winter below choice the good design and enjoy it your life ,But is design my like this all the in good design ,textile and fashion in used the more designing for the make dresses man and woman ,this likes the more girls and some boys ,this comfortable and soft beautiful and as golden shine design .so your like cotton or wool and other fabrics or best collection.
Tuesday, June 28, 2011
SWELLING OF CELLULOSE
In naturally occurring cellulose which may be typified by cotton cellulose the chains in the Michelle are packed closely together . Very small molecules such as water are small enough to penetrate between the chains and a process akin to capillary pressure tends to cause the chains of cellulose when immersed in water to be forced apart be penetration of water. This process can be greatly accelerated and magnified by steeping the fibers in solutions which have the effect of destroying of decreasing the partial valencies which cause the chains to adhere together .
Once the cellulose has been swollen by such solution on teneral in never returns to the former compact state and the swelling is permanent . In theory the only difference between swollen cellulose and ordinary cellulose should be in the increased spatial separation of the chains with consequent decrease in orientation and greater exposure of the O H groups to chemical action I practice there is also usually a certain amount of degradation due to a proportion of the chains becoming bro men resulting in a lowering of the mean chain length.
Swollen cellulose behaves much the same as ordinary cellulose but chemical reactions such as hydrolysis oxidation and electrification proceed faster and physical reactions such as moisture absorption (regain) dyeing staining with reagents and absorption of inorganic salts proceed father
Examples of swollen cellulose are vegetable parchment from concentrated sulfuric acid swelling followed by washing with water pandemonium rayon from solution in copper ammonium hydroxide followed by precipitation with water mercerized cotton from swelling with caustic soda followed by washing with water acetate rayon from electrification with acetic acid followed by solution in a solvent and re precipitation of the ester.
Once the cellulose has been swollen by such solution on teneral in never returns to the former compact state and the swelling is permanent . In theory the only difference between swollen cellulose and ordinary cellulose should be in the increased spatial separation of the chains with consequent decrease in orientation and greater exposure of the O H groups to chemical action I practice there is also usually a certain amount of degradation due to a proportion of the chains becoming bro men resulting in a lowering of the mean chain length.
Swollen cellulose behaves much the same as ordinary cellulose but chemical reactions such as hydrolysis oxidation and electrification proceed faster and physical reactions such as moisture absorption (regain) dyeing staining with reagents and absorption of inorganic salts proceed father
Examples of swollen cellulose are vegetable parchment from concentrated sulfuric acid swelling followed by washing with water pandemonium rayon from solution in copper ammonium hydroxide followed by precipitation with water mercerized cotton from swelling with caustic soda followed by washing with water acetate rayon from electrification with acetic acid followed by solution in a solvent and re precipitation of the ester.
Sunday, June 26, 2011
DESIGN AGENTS
Warps are more often than not sized by application of stiffening and or lubricating agents to assist weaving and usually the size must be removed after weaving in preparation for dyeing . It is not impossible that much more sizing is carried out than is really necessary out of habit and that quite a lot of sizing could be dispensed with by suitable alterations in processing .If so a considerable sum of money is spent unnecessarily in putting on a size and taking it off again .
The basis for most cotton goods is starch which is also used largely for sizing wool although gelatin is also used considerably for wool . In addition there are oil sizes consisting of linseed oil which is caused to oxidase these certainly give warped which find considerable use in the weaving of rayon and especially nylon as they are emulsions they are easily removed if properly prepared . Finally there are adventitious aids to weaving such as the wax rods used by weavers for rubbing difficult warps these are frequently plain paraffin waxen extraordinary thing to use when wax rods containing emulsifying agents are available at almost the same price.
The diastolic ferments convert starch into dextrin and maltose. The action is conditioned by the following factors (a)temperature of action (b) time of action (c) P H value of the solution (d) presence of other substances.
Diastase begins to be destroyed at 65 deg. C . and decomposition is rapid at 70 deg. C . There are certain products of bacterial origin claimed to be resistant to higher temperatures but their efficiency is greatly reduced. The optimum action of all type seems to be obtained at about 60 deg. C. In commercial diastolic the enzyme is found accompanied by a natural protective agent which may be carbohydrate in character :This agent is present only on diastoforsof vegetable origin and the bacterial types are more stable after a certain amount of designing has been accomplished . Stability to temperatures near 70 deg. C . should always be tested because lack of stability may cause waste under practical conditions careless workmen may put the diasto for into cold water and heat up with an open steam pipe instead of getting the bath to the required temperature before adding the malt or the temperature of the bath may be allowed to rise above 65 deg.C.
The time of action is related to the concentration. A certain weight of starch mey be removed quickly by a high concentration of diastase or more slowly by a lower concentration . In determining the amount to be used the cost of maly must ne nalanced against the cost of time usually maly will be found the cheaper of the two .
Malt extracts are very sensitive to P H even a small deviation from P H 7 having very noticeable effects 1/10 oz . of soda ash or one tenth pint of H C I per 100 gallons is sufficient to have a noticeable effect.
operation of a given product should therefore be known and works conditions examined to ensure that the range is not exceeded. Bacterial enzymes are much less sensitive to alkali than vegetable enzymes and it is possible with the former to design in a soap scouring bath free from alkali at the cost of using a decidedly higher concentration than would be required neutral.
The basis for most cotton goods is starch which is also used largely for sizing wool although gelatin is also used considerably for wool . In addition there are oil sizes consisting of linseed oil which is caused to oxidase these certainly give warped which find considerable use in the weaving of rayon and especially nylon as they are emulsions they are easily removed if properly prepared . Finally there are adventitious aids to weaving such as the wax rods used by weavers for rubbing difficult warps these are frequently plain paraffin waxen extraordinary thing to use when wax rods containing emulsifying agents are available at almost the same price.
The diastolic ferments convert starch into dextrin and maltose. The action is conditioned by the following factors (a)temperature of action (b) time of action (c) P H value of the solution (d) presence of other substances.
Diastase begins to be destroyed at 65 deg. C . and decomposition is rapid at 70 deg. C . There are certain products of bacterial origin claimed to be resistant to higher temperatures but their efficiency is greatly reduced. The optimum action of all type seems to be obtained at about 60 deg. C. In commercial diastolic the enzyme is found accompanied by a natural protective agent which may be carbohydrate in character :This agent is present only on diastoforsof vegetable origin and the bacterial types are more stable after a certain amount of designing has been accomplished . Stability to temperatures near 70 deg. C . should always be tested because lack of stability may cause waste under practical conditions careless workmen may put the diasto for into cold water and heat up with an open steam pipe instead of getting the bath to the required temperature before adding the malt or the temperature of the bath may be allowed to rise above 65 deg.C.
The time of action is related to the concentration. A certain weight of starch mey be removed quickly by a high concentration of diastase or more slowly by a lower concentration . In determining the amount to be used the cost of maly must ne nalanced against the cost of time usually maly will be found the cheaper of the two .
Malt extracts are very sensitive to P H even a small deviation from P H 7 having very noticeable effects 1/10 oz . of soda ash or one tenth pint of H C I per 100 gallons is sufficient to have a noticeable effect.
operation of a given product should therefore be known and works conditions examined to ensure that the range is not exceeded. Bacterial enzymes are much less sensitive to alkali than vegetable enzymes and it is possible with the former to design in a soap scouring bath free from alkali at the cost of using a decidedly higher concentration than would be required neutral.
Saturday, June 25, 2011
DIRECT COTTON DYE STUFFS
These are dye stuffs which dye cotton from a neutral o rsilghtly alkaline bath. The syeing is an adsorption process and requires a certain segree of aggregation of the dye stuff in the dye bath and a certain special shape of the molecule .It is usual to increase the natural state of aggregation by the addition of salt or Sauber's salt. many direct cotton aye stuffs aye wool and silk at the boil as strongly as or more strongly than they sye cotton . A few leave wool undated especially in alkaline baths a low temperatures or after treatment of the wool with formal dehydrate or tannin . Many combine with formaldehyde copper or chromium salts to give dyeings of greatly improved fastness to either light or washing or both.
SULPHUR DYE STUFFS :
This type of dye stuff is insoluble in water but is reduced by mild reducing agents such as sodium sulphide to a water soluble eleucocompound which is absorbed by cotton subsequent oxidation con averts the LegCo compound into the original insoluble form and thus "dyes " the fiber. The dyeing are usually very fast to wet processing .
Several sulphide dye stuffs are improved in fastness by after treat meant with chromium or copper salts and are brightened in shade by oxidation with hydrogen peroxide or other oxidizing agent . They always contain proportions of sulphur in a form easily oxidized on storage into sulfuric acid and consequently heavy shades such as black may produce sufficient acid over a period of time to cause tendering of vegetable fibers on which they are dyed . They can be brightened in shade by after treatment with basic colors for which they act as a mordant.
SULPHUR DYE STUFFS :
This type of dye stuff is insoluble in water but is reduced by mild reducing agents such as sodium sulphide to a water soluble eleucocompound which is absorbed by cotton subsequent oxidation con averts the LegCo compound into the original insoluble form and thus "dyes " the fiber. The dyeing are usually very fast to wet processing .
Several sulphide dye stuffs are improved in fastness by after treat meant with chromium or copper salts and are brightened in shade by oxidation with hydrogen peroxide or other oxidizing agent . They always contain proportions of sulphur in a form easily oxidized on storage into sulfuric acid and consequently heavy shades such as black may produce sufficient acid over a period of time to cause tendering of vegetable fibers on which they are dyed . They can be brightened in shade by after treatment with basic colors for which they act as a mordant.
Thursday, June 23, 2011
THE MEASUREMENT OF WHITE SUBSTANCES
It might seem at first sight that the examination of white surfaces is merely a special application of the general methods of measurement of colours and that and of the instruments previously described would be satisfactory . It is a curious fact however that the colour of almost white substances is very difficult to measure accurately and consistently with such instruments . The difficulty lies in the eye of the observer and not in the sensitivity of the instrument .
Very little work has been published upon the variation of sensitivity of the eye with the proportion of white present in a colour but it has been established that the neater a colour approaches white the more insensitive the human eye becomes to changes both in the actual colour (i e hue ) and in the amount of white present (i e the depth of the colour ).
Very little work has been published upon the variation of sensitivity of the eye with the proportion of white present in a colour but it has been established that the neater a colour approaches white the more insensitive the human eye becomes to changes both in the actual colour (i e hue ) and in the amount of white present (i e the depth of the colour ).
Tuesday, June 21, 2011
LOVIBOND TINTOMETER
The lovibond tintometer on one of the more familiar scientific instruments in th educing trade, In effect it works on exactly the same principle as dyeing to pattern the pattern is matched by means of red yellow an blue glasses which are mixed together until the required shade is obtained . In this instrument the pattern which is being matched is illuminated by an intense light thrown into one half of an eyepiece. the other half of the eyepiece is illuminated by a white light of standard intensity . The colour of this light can be modified by interposing coloured glasses between the light source and the eyepiece.
VERY BRIGHT COLOURS:
It may be mentioned that in certain cases colours occur which are brighter than the colour units employed in the Tintometer . This may frequently happen when one is recording the shades of say dyeings of basic colours on silk . There is of course no glass in the Tintometer scales which compares in brightness with the shade of Rhoda mine silk or of Sulphurous on wool. In such a case it is necessary to introduce neutral tint slices i e grey glasses between the sample under test and the eye of the observer . This is recorded as excess brightness and indicates the amount of light reflected or transmitted by the sample n excess of the light reflected ot transmitted by the Tintometer slides.
In the Lovibon Tintometer British drug Houses pattern the number of slides in the standard model No I is restricted to sixty giving twenty of each colour red yellow and blue . It is found that good agreement between observers is obtained when working to this order of colour but Tintomter slides with finer gradations can be prepared for special purposes demanding a higher degree of accuracy.
VERY BRIGHT COLOURS:
It may be mentioned that in certain cases colours occur which are brighter than the colour units employed in the Tintometer . This may frequently happen when one is recording the shades of say dyeings of basic colours on silk . There is of course no glass in the Tintometer scales which compares in brightness with the shade of Rhoda mine silk or of Sulphurous on wool. In such a case it is necessary to introduce neutral tint slices i e grey glasses between the sample under test and the eye of the observer . This is recorded as excess brightness and indicates the amount of light reflected or transmitted by the sample n excess of the light reflected ot transmitted by the Tintometer slides.
In the Lovibon Tintometer British drug Houses pattern the number of slides in the standard model No I is restricted to sixty giving twenty of each colour red yellow and blue . It is found that good agreement between observers is obtained when working to this order of colour but Tintomter slides with finer gradations can be prepared for special purposes demanding a higher degree of accuracy.
Sunday, June 19, 2011
TEST FOR COLOUR BLINDNESS FOR GARNER TEST
GARNER TEST :
Some principles to be followed in devising a test sufficiently sensitive to detect such differences have been described by the author 13 else where .These principles have since been used to construct a test which detects qualitatively and quantitatively differences in colour vision which exist amongst for example foreman dyers of proved ability in colour matching .Representative points on a colour triangle the corners of which are red yellow and blue are dyed with dyes which possess reflection spectra such that they tend to go greener in artificial light whilst test patterns are dyes in such a way that they go redder in artificial light.
A match obtained by a normal person in north daylight on this test is not valid to him in any other light and the test is therefore of use in evaluating lamps put forward as suitable for colour matching. In one experiment a difference in the colour of the light from two commercial daylight matching lamps of the same make and supposedly identical was detected and found to be due to a difference in the age for the electric bulb in the two lamps.
The reflectance spectra of two patterns which in this test match in north daylight to normal eyes differ in the red and green regions of the spectrum . Therefore a person who is colour weak with respect to green or red sees a difference in depth where the normal eye sees identity this difference in depth in depth is regather by the colour weak person as a difference in colour. The test detects cases of red green colour weakness which are mild enough to escape such tests as the Ishmael test . It is also by its nature able to detest departures from normal due to yellowing of the lens or abnormal oracular pigmentation .
The normal or mean match positions in the light of the Sc standard north daylight of the C I E 1,2 have been ascertained and are recorded on a chart for reference purposes . The test is issued together with would be obtained by a normal observer have been assessed and noted.
The deviations from normal found by examination of a considerable number of individuals have been calculated into terms of standard deviation and a circle wotha radius of twice the standard deviation drawn round the mean match positions on the chart may be used in assessing the suitability or otherwise of an individual for employment as a colour matcher.
Some principles to be followed in devising a test sufficiently sensitive to detect such differences have been described by the author 13 else where .These principles have since been used to construct a test which detects qualitatively and quantitatively differences in colour vision which exist amongst for example foreman dyers of proved ability in colour matching .Representative points on a colour triangle the corners of which are red yellow and blue are dyed with dyes which possess reflection spectra such that they tend to go greener in artificial light whilst test patterns are dyes in such a way that they go redder in artificial light.
A match obtained by a normal person in north daylight on this test is not valid to him in any other light and the test is therefore of use in evaluating lamps put forward as suitable for colour matching. In one experiment a difference in the colour of the light from two commercial daylight matching lamps of the same make and supposedly identical was detected and found to be due to a difference in the age for the electric bulb in the two lamps.
The reflectance spectra of two patterns which in this test match in north daylight to normal eyes differ in the red and green regions of the spectrum . Therefore a person who is colour weak with respect to green or red sees a difference in depth where the normal eye sees identity this difference in depth in depth is regather by the colour weak person as a difference in colour. The test detects cases of red green colour weakness which are mild enough to escape such tests as the Ishmael test . It is also by its nature able to detest departures from normal due to yellowing of the lens or abnormal oracular pigmentation .
The normal or mean match positions in the light of the Sc standard north daylight of the C I E 1,2 have been ascertained and are recorded on a chart for reference purposes . The test is issued together with would be obtained by a normal observer have been assessed and noted.
The deviations from normal found by examination of a considerable number of individuals have been calculated into terms of standard deviation and a circle wotha radius of twice the standard deviation drawn round the mean match positions on the chart may be used in assessing the suitability or otherwise of an individual for employment as a colour matcher.
Saturday, June 18, 2011
Brain and mouth of health protection
Six miles a week can help you hold on to what matters—your gray matter. According to a study from the G.C University of Pun jab walking six miles a week can protects against brain shrinkage and since brain size has been linked to dementia, men and women everywhere should be lacing up their tennis shoes for a stroll around the park. Aerobic exercise not only keeps your bones and heart healthy, but it may be keeping your brain sharp as well.
Effortless beauty to-do:
Hide the fine lines with a sponge.To be really sure there’s no excess make-up to settle into and emphasize those fine lines around you eyes and mouth, smooth and blend with a make-up sponge. Click for more must-try beauty and skin care tips.
Dumped? How to heal the health effects of a broken heart
Living longer, living with loss
One father's fight to save his son sight
Food pyramid out, 'My Plate' in for healthy eating
Painful memories: Seek treatment for depression and feeling
In addition to stress and anxiety, individuals suffering from major depression may experience symptoms such as difficult concentrating, remembering details and making decisions. More importantly depression may result in a speaks in the level of cortisol in your brain. A long-term increase in the steroid hormone cortisol may lead to wasting away of your hippo campus, the part of your brain responsible for memory.
Sleep strengthens memory
Sleep is vital in consolidating memory. The effects of adequate sleep help us understand why studying and getting 8 hours rest, is always better than studying the day of an exam. Sleep specialists still do not know the overarching purpose of sleep however, but emerging research continues to support the idea that sleep is important to the brain. While everyone may agree that a good night’s sleep makes you feel better in the morning, the science behind sleep is also critically important to policy makers that construct work hour regulations for doctors, medical residents and pilots.
TODAY Health
Tuesday, June 14, 2011
Life in important you brain
what is you life in health ?( blonde moments) - whatever you prefer to call it, we all experience forgetfulness from time to time. But there are a few simple things you can do to keep brain glitches at bay. NBC's chief medical editor Dr.Nadia Manib offers these five easy tips to give your mental powers a boost.
Everything in moderation: Keep your alcohol intake in check
Most peoples know that too much alcohol can impair your short-term memory. But long-term, overconsumption of alcohol can permanently impair your recall ability. Some studies have shown that moderate drinkers do better on memory tests than both heavy drinkers and even nondrinkers. Although physicians do not recommend that everyone start consuming alcohol, we certainly know that alcohol abuse can damage your brain cells and impair memory and cognition.
Mind boggling brain : Memory plays games
Although there is plenty of controversy surrounding the memory benefits of brain-teasers and puzzles,,, for all peoples they are a good way to spend a holiday morning. An added benefit of brain play games is that they can often be share with all your family and all friends. Social inter action is a good way to get the neurons firing. Inter acting with both pets and peoples has been show to stave off depressive feelings and will makes you feeling youth full and vibrant for years to come.
Sunday, June 12, 2011
FURTHER WINDING TEST
The winding may be tested further as follows . A two in wide length of adhesive tape such as is used by electricians for insulation ( or gummed paper or transparent cellulose adhesive tape ) is cut five ins . long. It is pressed longitudinally along the rod and pressed round the circumference to cover the winding completely. a sharp knife is then used to cut the winding along the length of the rod where the two edges of the tape meet .It is then a simple matter to strip the winding off from the rod as a sheet of parallel threads measuring two ins. by five ins.The sheet is placed face downwards upon a flat surface and ironed with a warm iron to complete firm adhesion to the tape .
This pad or sheet is sufficiently stable to withstand wet treatments such as scouring stripping of sye re dyeing or testing with B D H Universal Indicator for variations in alkalinity or acidity or staining with ferro cyanide for iron content or for examination by ultra violet light for mineral oil stains . It is useful to employ this method in conjunction with the staining methods given in my other post .
This device may also be used to follow variations in length due to processing. A length of yarn is wrapped round the long axis the yarn is unwrapped and treated (e.g. by mercerisation ) dried and rewound under the same tension as originally used . Shrinkage will be indicated be the marked places forming a spiral on the rod and irregular shrinkage will show as irregularities in the spiral.
In practical works laboratory technique the use of the inspection board and inspection rod coupled with systematic examination of variations in the consecutive length of yarn obtained in the way described will solve a large percentage of the problems encountered.
This pad or sheet is sufficiently stable to withstand wet treatments such as scouring stripping of sye re dyeing or testing with B D H Universal Indicator for variations in alkalinity or acidity or staining with ferro cyanide for iron content or for examination by ultra violet light for mineral oil stains . It is useful to employ this method in conjunction with the staining methods given in my other post .
This device may also be used to follow variations in length due to processing. A length of yarn is wrapped round the long axis the yarn is unwrapped and treated (e.g. by mercerisation ) dried and rewound under the same tension as originally used . Shrinkage will be indicated be the marked places forming a spiral on the rod and irregular shrinkage will show as irregularities in the spiral.
In practical works laboratory technique the use of the inspection board and inspection rod coupled with systematic examination of variations in the consecutive length of yarn obtained in the way described will solve a large percentage of the problems encountered.
Tuesday, June 7, 2011
LIPS AND EYES
lips:
For the bride’s lips, I like to use a colour
that will not clash with the bride’s eyes and dress and
of course her Bouquet…Bearing in mind you have already
primed your lips when you applied your foundation and
powder by putting a suitable balm or moisturiser on
them after you have done your base. By the time you
are ready for lipstick to be applied, your lips will
be in perfect condition…-Always leave this to the very last.
I use a “Nude” lip pencil over the entire lip before applying
the lip colour as it gives extra staying power, apply
lip-colour then blot with a tissue and reapply lipstick with a
touch of gloss or a more shimmering colour to enhance the shadow of
your bottom lip and a slight touch over the top lip.
Eye
For your eyes, can not go wrong with matt make up with slight shimmering
shadow . I usually use a combination or colours to compliment the brides out fit.
A soft black eyeliner .(no browns ) use black mascara for your dedding day,
even if you are very fair and usually go for brown.. it will show up better in your
photographs, smudged finshed to the base of your lashes on your upper lid
will make your eyeslashes appear thicker and , in conjunction with a little grey or
dark brown eye shadow applied with a think brush at the base of your lower
lashes,,, will suntyl define your eyes perfect for the photos .
Saturday, June 4, 2011
REGENERATED CELLULOSE RAYONS
The group includes viscose rayon cup rate rayon resin modified viscose types and magnified acetate rayon's i e products which are substantially poly b glucose. They may be regarded chemically as swollen cellulose and their general reactions are similar to those of mercerised cotton though they are considerably more degraded. their shorter chain length causes them to have a considerably higher fluidity a greater susceptibility to chemical attack and a considerably greater swelling in water ( which results in a much greater extensibility when wet) than mercerised cotton . According to staudinger the mean chain length of cotton corresponds to 2,000 glucose units whereas the mean chain length of viscose probably contains not more than 300 to 450 units.
Microscopically the main types of these rayon are fairly easily distinguished from each other . In addition to the normal forms there are products which have been de lustred by incorporation of pigments (titanium dioxide usually ) in the opining dope or by surface application of a pigment such as barium sulphate or by finely dispersed resins such as dimethyl urea or by substantive quaternary containing numerous air bubbles and one form which has a central canal . For examination of these types option solution of the main fibre by mounting in a medium of suitable ref active index is of great value.
Microscopically the main types of these rayon are fairly easily distinguished from each other . In addition to the normal forms there are products which have been de lustred by incorporation of pigments (titanium dioxide usually ) in the opining dope or by surface application of a pigment such as barium sulphate or by finely dispersed resins such as dimethyl urea or by substantive quaternary containing numerous air bubbles and one form which has a central canal . For examination of these types option solution of the main fibre by mounting in a medium of suitable ref active index is of great value.
Friday, June 3, 2011
STUBBORN STAINS
To remove oil stains from woollen clothes apply a little curd over the area and wash it after some time . The stains will vanish.
To remove stains from melamine crockery , apply a little vinegar on them and all the stains will wash away easily.
Add the juice of one orange to a bowl full of strawberries for enhanced flavour
Egg shell uses:
Put egg shells to good use by powdering them in a mixer . This will clean the mixer blades and you con also use the powder for scrubbing vessels.
Bio-Amla hair oil :
bio amla hair oil has been taking care of all types of hair to make them strong , long and elegant for the last four decades . It's right combination of herbs keeps your hair full of life rich and shiny .That 's why majority of women in Pakistan prefers bio amla hair oil over other and passes it on to the next generation because of it 's unmatched benefits.
Hair tips :
Your hair your looks and your personality.Hair style is a deferent age groups.when is pollution ours life of part.if you Care of hair ,you likes your skin and hair.hair Care to keep and healthy .The weather of winter in hair of mostly few opened.....and hair for good shampoo used it.Hair Care involves keeping and your Hair scalp clean.Hair of all problems with eat a good food,because this very effective in your hairs problems :
Skin Tips:
When the indoor the a morning in the sun Kerri ...use the some sunscreen lotion with a minimum thirteen minuet 30.
And Please more drinking of water ...because skin Care is a very impotent you.
Give up in the morning more not smoking a day .
Your skin in your life very impotent... because your skin increase good personality.
Used the some vitamin C tablas and food his finished the skin problems :
Wednesday, June 1, 2011
OXIDATION HISTORY
A slow oxidation over a long period will produce the same alterations as a rapid oxidation over a short period. The first attack by oxygen upon an oil results in peroxide formation peroxides then decompose into either free fatty acid petrol insoluble acids or the original unsaturated compound or aldehyde. Analysis for any of the decomposition products determines the amount of oxidation which has taken place but this knowledge is far less important than knowledge of the speed at which oxidation is liable to take place.
Oxidation acids are not removed by most commercial refining processes and their amount is a safe indication of the extent of past oxidation but not of its cause nor of the likelihood of future oxidation .
Considerable amounts of oxy-acids indicate the existence in time past of a considerable swing of the catalyst anti oxidant balance in favour of oxidation . If the reasons for the presence of oxy acids in an oil have been dealt with the presence of less than 2 % in a vegetable oil is not objectionable.
The peroxide content of an oil has repeatedly been proposed as a criterion of suitability but it gives no indication whatever of future oxidation tendencies a given value may be due to slow formation over a long period in which case it is harmless or to a quick formation over a short period in which case it is a pointer to danger.
Oxidation acids are not removed by most commercial refining processes and their amount is a safe indication of the extent of past oxidation but not of its cause nor of the likelihood of future oxidation .
Considerable amounts of oxy-acids indicate the existence in time past of a considerable swing of the catalyst anti oxidant balance in favour of oxidation . If the reasons for the presence of oxy acids in an oil have been dealt with the presence of less than 2 % in a vegetable oil is not objectionable.
The peroxide content of an oil has repeatedly been proposed as a criterion of suitability but it gives no indication whatever of future oxidation tendencies a given value may be due to slow formation over a long period in which case it is harmless or to a quick formation over a short period in which case it is a pointer to danger.
Monday, May 30, 2011
PIMPLES
Rub the scrapings of bitter gourd all over your face and leave for a few minutes before washing off . Not only will you have glowing skin but black heads and pimples too will be reduced considerably.
Dried and chafed skin remedy
If your skin has dried and developed cracks apply mustard oil it every night before going to bed . In no time you will have a baby soft .
Peeling garlic can be made easy by soaking the flakes in water over night .
Packing house
When you plan to stay away from home for a long a time scatter neem leaves in all the rooms and cupboards . Your house will not smell of dust. when you return it will also be free of creepy insects .
Lentil care
Apply a little Castor oil to deal before storing in containers . this will prevent fungal growth and deeps it fresh. However care should be taken to thoroughly wash the deal before use .
Relief from heat
For an instant relief press a little dough on scalded finger or any other area affected be heat.
EYES TIPS:
eyes of beauty interesting and most makes beauty full.
Mostly woman's very expensive makeup she is buyer .
woman's eyes of related is many problems.
for example not completely Cline eyes after makeup.
eyes of protect used it vita men A and vita men B and C very .
and otherwise milk, better, fish,eggs,and carrot, tomato, mangoes eyes for also is compulsory .
Compulsory of eyes is makeup before complete the Cline your eyes.and used the nice Kareem. because in your complete body eyes very impotent and is soft . please be care your eyes.
THE ANALYSIS OF FINISHES
It will be realized from the preceding pages that the finish on a fabric may contain a wide range of substances most of which are of such a character that they do not lend themselves easily to exact identification . Commercial finishes usually have a basis or carrier of starch gum to resin which confers more or less stiffness and acts as a binder for other ingredients . Its stiffness and handle depend on the actual basis present the percentage applied and the method of application depend on the viscosity of the paste or rather f the weight of the thickener per gallon necessary to give a paste of the usual consistency required for practical application . The thickening material may have been modified by chemical treatment which produces degradation products such as Dexedrine or glucose . Hygroscopic agents such as glycerine sodium lactate or Manning may be added . For certain purposes sugar itself is used . Soaps fats waxes or oils may be present for some cloths filling compounds such as chalk talc or other weightings may be present . Antiseptics and antimissile compounds or in recent years anti vermin compounds may be used whilst moth proofing agents are common.
It is therefore at the present time very difficult to work out a general scheme of analysis which will systematically lead to the orderly detection of the components. Indeed the main element in any such scheme must be experience in the analysis if sizes and thickening's.
Probably the greater the experience the less is any rigid scheme adopted .
It is therefore at the present time very difficult to work out a general scheme of analysis which will systematically lead to the orderly detection of the components. Indeed the main element in any such scheme must be experience in the analysis if sizes and thickening's.
Probably the greater the experience the less is any rigid scheme adopted .
Thursday, May 26, 2011
ANALYSIS OF COLOR CURVE
The color curve now requires analysis . A glance at the curve will show that its peak point is in the orange section of the spectrum, which is to be expected because of the color of the pattern . The position of the curve as a whole indicates to what degree a color is light or dark . If the color is light that is to say is a approaching a white then the curve will be high up on the graph . If on the other will be flatter and low down on the curve.
The average position of the curve is termed the mean tone and is obtained by adding together the percentage of light transmitted through each of fig .ninety two will transmit the following percentages of light through the six filters
red 63 % ------Orange 64%------Yellow 49%--------Green 17%--------Blue 7%--------Violet 9%
The mean tone will then equal 35 % and it is indicated by drawing a straight line on the graph.
The purity of a color is indicated by the percentage transmission of the dominant color compared with the percentage transmitted by the complementary to this color . For example a bright reddish orange will contain very little of its complementary color blue it will have great purity The more blue there is presnt the more blue will be reflected from the pattern and the dirtier and flatter will the scarlet color be , This would be indicated on the graph be the curve being higher in the blue region . the purity of the orange represented in fig 92 is 64 transmission of the dominant orange minus 7 transmission of the complementary blue equals 57 .
In the above description the amounts transmitted through the various filters are returned as percentages.
The average position of the curve is termed the mean tone and is obtained by adding together the percentage of light transmitted through each of fig .ninety two will transmit the following percentages of light through the six filters
red 63 % ------Orange 64%------Yellow 49%--------Green 17%--------Blue 7%--------Violet 9%
The mean tone will then equal 35 % and it is indicated by drawing a straight line on the graph.
The purity of a color is indicated by the percentage transmission of the dominant color compared with the percentage transmitted by the complementary to this color . For example a bright reddish orange will contain very little of its complementary color blue it will have great purity The more blue there is presnt the more blue will be reflected from the pattern and the dirtier and flatter will the scarlet color be , This would be indicated on the graph be the curve being higher in the blue region . the purity of the orange represented in fig 92 is 64 transmission of the dominant orange minus 7 transmission of the complementary blue equals 57 .
In the above description the amounts transmitted through the various filters are returned as percentages.
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